You will be given a definition of a task first, then some input of the task.
In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

A drunk British man is being hailed as a saviour after spending more than £300 ordering pizza for complete strangers in the US. Daniel Sobey-Harker, 27, from London, posted to the social media site Reddit offering to buy a pizza for someone in the US. But instead of purchasing just one pie as he had originally intended the Londoner ended up buying 30 pizzas for strangers. Things took a surreal turn when, after struggling with several different payment options, Daniel bought two digital Bitcoins which, unknowingly to him, were worth $550 (£352). He became so frustrated by the carry on and ended up getting a 'tad merry' after 'getting though nine beers' which led to him placing the giant order, even sending one to a user in Hawaii.Daniel Sobey-Harker accidentally bought $550 worth of BitcoinsEnded up getting a 'tad merry' after 'getting though nine beers'Decided to spend the majority of his digital money on ordering pizza 
 Question:'Not only that but instead of getting angry about obtaining a whole $500 in _, you make it rain pizza instead!.
Output:
Bitcoins